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Device for contacting patterned electrodes on porous substrates

a technology of porous substrates and electrodes, applied in variable capacitors, generators/motors, instruments, etc., can solve the problems of performance limitations, affecting the appearance of the device for display applications, and reducing the available area of active devices

Active Publication Date: 2008-02-19
UNIV OF FLORIDA RES FOUNDATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a method for making a device with patterned electrodes. The method involves depositing electrically conductive material on a porous substrate and forming at least one electrode by a conducting channel in the substrate. The device can be used in applications such as electrochromic displays or electromagnetic devices. The invention also includes adding an electrically conductive solution to complete the conducting channel and coating the electrode with an electrochromically active polymer layer. The device can switch between an optically clear and a colored state in less than one second. The technical effects of the invention include improved control over the conductive material and faster switching between states.

Problems solved by technology

The conductive traces and bond pads can significantly diminish the available area for active devices.
Moreover, such arrangements can introduce performance limitations, as well as affect the appearance of the device for display applications, such as for certain electrochromic and electroluminescent devices.

Method used

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  • Device for contacting patterned electrodes on porous substrates
  • Device for contacting patterned electrodes on porous substrates
  • Device for contacting patterned electrodes on porous substrates

Examples

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examples

[0065]The present invention is further illustrated by the following specific simulation Examples, which should not be construed as limiting the scope or content of the invention in any way.

[0066]The Examples below relate to an exemplary application of the invention to ECDs. The ECDs comprise electrochromic polymer(s) which cover a reflective gold surface mounted onto a uniformly porous substrate using patterning techniques. Following a layer-by-layer configuration, the electro-active platforms were paired to a polymeric counter-electrode in order to assemble reflective ECDs. Alkylenedioxythiophenes-based polymers are described on porous architectures with back side contact according to the invention to build fast switchable and highly stable ECDs which require a very low energy to maintain a reflective or absorptive property.

[0067]Propylene carbonate (PC) and acetonitrile (ACN) were purchased from Aldrich, distilled and dried before use. LiClO4 (99%, purity) was purchased from Fluka...

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Abstract

A method for contacting patterned electrode devices includes the steps of providing a porous substrate, depositing electrically conductive material to form at least one electrode on a front-side of the porous substrate and depositing at least one electrically conductive back-side contact trace on the back-side of the substrate. A portion of the electrically conductive material penetrates into the substrate. A device is formed including the electrode on the front side of the substrate, wherein the electrode is electrically coupled by a conducting channel including the electrically conductive material through the substrate to the back-side contact trace.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 60 / 523,247 entitled “A METHOD TO CONTACT PATTERNED ELECTRODES ON POROUS SUBSTRATES AND DEVICES THEREBY” filed on Nov. 19, 2003, the entirety of which is incorporated herein by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]The United States Government has rights in this invention pursuant to Air Force Office of Scientific Research Grant / Contracts # F49620-00-1-0047 and F49620-03-1-0091 Army Research Office / MURI (subcontract from UCLA) Grant / Contract # 0160-G-AC859.FIELD OF THE INVENTION[0003]The invention relates to methods of electrically contacting electromagnetically active devices from the back-side of porous substrates, and related devices.BACKGROUND OF THE INVENTION[0004]Electrical contact to electromagnetically active devices, such as integrated electronics, electroluminescent, photovoltaic, electrochromic, and other devices, is ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G02F1/153G02F1/155H01G7/00H01L21/316H01L21/768H02N2/00H10K99/00
CPCG02F1/155H01L51/0096H01L27/3248G02F2001/1555G02F2201/42H01L21/76898Y10T29/49126Y02E10/549H01L33/62Y10T29/435H01L2924/12041H01L2224/32225H10K59/123H10K77/10G02F2201/122
Inventor REYNOLDS, JOHN R.ARGUN, AVNI A.AUBERT, PIERRE HENRIBERARD, MATHIEU
Owner UNIV OF FLORIDA RES FOUNDATION INC
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